package com.atguigu.oss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.atguigu.oss.service.OssService;
import com.atguigu.oss.utils.ConstantPropertiesUtil;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.FileInputStream;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

/**
 * @Author 徐超
 * @Create 2024/12/8 16:49
 */

@Service
public class OssServiceImpl implements OssService {
    //上传头像到oss
    @Override
    public String uploadFileAvatar(MultipartFile file) {
        //工具类获取值
        String endpoint = ConstantPropertiesUtil.END_POINT;
        String accessKeyId = ConstantPropertiesUtil.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtil.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtil.BUCKET_NAME;

        try {
            //创建OSS实例
            OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);

            //获取上传文件输入流
            InputStream inputStream = file.getInputStream();
            //获取文件名称
            String fileName = file.getOriginalFilename();

            //1 在文件名称里面添加随机唯一的值
            String uuid = UUID.randomUUID().toString().replaceAll("-","");
            // yuy76t5rew01.jpg
            fileName = uuid + fileName;

            //2 把文件按照日期进行分类
            //获取当前日期
            //  2019/11/12
            String datePath = new DateTime().toString("yyyy/MM/dd");
            //拼接
            // 2019/11/12/ewtqr313401.jpg
            fileName = datePath + "/" + fileName;

            //调用oss方法实现上传
            //第一个参数 Bucket名称
            //第二个参数 上传到oss文件路径和文件名称 aa/bb/1.jpg
            //第三个参数 上传文件输入流
            ossClient.putObject(bucketName,fileName,inputStream);

            //关闭OSSClient
            ossClient.shutdown();

            //把上传之后文件路径返回
            //需要把上传到阿里云oss路径手动拼接出来
            //https://edu-2024-12-7.oss-cn-beijing.aliyuncs.com/b_b4b9f258ba061d8c38e7f125f8115e56.jpg
            String url = "https://" + bucketName + "." + endpoint + "/" + fileName;
            return url;

        }catch (Exception e){
            e.printStackTrace();
            return null;
        }
    }
}
